A Flash of Lightning.
Wliiit is a Hash of liu'lilniiiu'' asks a correspondent of tho Knylish Mechanic. Cannot Hiiy of our professors K' Vl! ~h ,v true definition of this sini|ilu <|iiery '( Of course, everyone knows Unit it is caused by nil electric current passing between the earth ami the clouds, or perhaps an interchange of currents, vibratory if you will. "That the Hash is caused by the burnin,i,' of the air and its contents as the current passes seems probable, and during the craze about dark flashes having been found on the photographs of lightning, one of our most learned professors propounded the idea that they were occasioned by Ihe burning of the air in the path of tho (lash, thereby producing a iras of a different refractive power from the air. This view would lead to what, wu may suppose to be a fact—that the air and its contents are really consumed by the current as it passes, for we know that a Hash of tho same character does not take plnoe in a vacuum where there is nothing to consume.
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Bibliographic details
Oamaru Mail, Volume XVII, Issue 5206, 12 February 1892, Page 1
Word Count
183A Flash of Lightning. Oamaru Mail, Volume XVII, Issue 5206, 12 February 1892, Page 1
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